A vehicle power supply system comprises a battery module that is constituted with a plurality of serially connected battery cell groups each include a plurality of serially connected battery cells, a plurality of battery cell control devices each disposed in correspondence to the plurality of battery cell groups, and a signal transmission path through which signals that are input to or output from the plurality of battery cell control devices are transmitted. Each of the plurality of battery cell control devices comprises a voltage measurement circuit that measures terminal voltages at the individual battery cells in the corresponding battery cell group, an abnormality diagnosis circuit that diagnoses an abnormality in the battery cell control device, a timing control circuit that outputs a signal for instructing measurement phase during which the terminalvoltage ismeasured, and, in synchronization with output of the measurement phase instruction signal, outputs a signal for instructing diagnosis phase during which diagnosis is executed by the abnormality diagnosis circuit, and a communication circuit that outputs a signal indicating the terminal voltage measured by the voltage measurement circuit and a signal based upon a diagnosis result by the abnormality diagnosis circuit, to the signal transmission path. The abnormality diagnosis circuit diagnoses an abnormality in the battery cell control device in synchronization with the terminal voltage measurement based upon the diagnosis phase instruction signal.


    Access

    Download


    Export, share and cite



    Title :

    Integrated circuit for controlling battery cell and automotive power supply system


    Additional title:

    Integrierte Schaltung zur Steuerung der Batterien und Stromversorgungssystem für Kraftfahrzeuge
    Circuit intégré de commande de batteries et système d'alimentation pour véhicules


    Contributors:

    Publication date :

    2015-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Integrated circuit for controlling battery cell and vehicle power supply system

    SAKABE KEI / EMORI AKIHIKO / KUDO AKIHIKO et al. | European Patent Office | 2015

    Free access

    AUTOMOTIVE POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING AUTOMOTIVE POWER SUPPLY DEVICE

    OTA KOHEI / SATO FUMIHIKO / HIBINO TOKUAKI et al. | European Patent Office | 2025

    Free access

    Automotive power integrated circuit processes

    Latham, L.F. | Tema Archive | 1989


    AUTOMOTIVE POWER SUPPLY DEVICE AND AUTOMOTIVE POWER SUPPLY SYSTEM

    FUKUSHIMA HAYATO | European Patent Office | 2017

    Free access

    Power supply circuit and method for controlling power supply circuit

    RU DFELDT GUNNAR / LEIDEN LUKAS / EGGELING MATTHIAS | European Patent Office | 2024

    Free access